By the time Roma shipped it had a 1.5 GHz quad core Chinese SoC with SiFive cores (JH7110), not the Alibaba THead TH1520 SoC which turned out at only 1.85 GHz anyway.

You can buy the same JH7110 SoC in a tablet with docking keyboard&trackpad cover (so pretty much a laptop) for $160 from Pine64 (PineTab-V).